Microorganisms and ion absorption by roots.
D000042:Absorption; D002118:Calcium; D002523:Edible Grain / Q000502:physiology*; D007477:Ions / Q000378:metabolism; D007700:Kinetics; D011188:Potassium / Q000378:metabolism*; D011189:Potassium Chloride; D012639:Seeds; D012988:Soil Microbiology; D013431:Sulfates
D007477:Ions; D013431:Sulfates; D011189:Potassium Chloride; D011188:Potassium; D002118:Calcium